Submission #602260

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
602260	2022-07-22 19:24:22	Devigo	Labels (NOI20_labels)	C++14	0 / 100	41 ms	5932 KiB

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#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
const int siz = 0;
const int mod = 0;
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  int n;
  cin >> n;
  vector<int> v(n-1);
  for(int i=0; i<n-1; i++) {
    cin >> v[i];
  }
  bool ok = 0; int sum = 1; vector<int> ans; ans.pb(sum);
  for(int i=0; i<n-1; i++) {
    sum += v[i];
    ans.pb(sum);
  }
  vector<int> an = ans;
  sort(ans.begin(), ans.end());
  if(ans[n-1] == n && ans[0] == 1) {
    ok = 1;
  }
  if(!ok) {
    cout << "-1\n";
 
 
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Compilation message (stderr)

Labels.cpp: In function 'int main()':
Labels.cpp:33:7: warning: unused variable 'x' [-Wunused-variable]
   33 |   int x = 1;
      |       ^

• Subtask 1: 0 / 7
• Subtask 2: 0 / 15
• Subtask 3: 0 / 25
• Subtask 4: 0 / 18
• Subtask 5: 0 / 35